How to call parent's parent javascript function from child window

Question

How to call parent's parent javascript function from child window.

Example- Parent 1 has javascript function abc() Now how to call Parent1 Javascript function in Child window from Parent 2 which is initially trigged from Parent 1 Window. I tried window.parent.parent. Still no luck.

Thanks in advance

Answer 1

Not sure what you mean with a child window. But I guess window.opener might be what you are looking for.

// Call abc in the window that opened the current window
window.opener.abc();

Update

Haven't tried it, but since window.opener is a reference to the window that opened the current window, then I guess you should be able to call the opener property on that reference, to get a reference to the its parent as well:

window.opener.opener.abc();

If you want to reach the topmost window (the root window, or what you would call it), then you can use window.top instead:

window.top.abc();